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https://github.com/lh3/minimap2.git
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@@ -252,7 +252,7 @@ void mm_sync_regs(void *km, int n_regs, mm_reg1_t *regs) // keep mm_reg1_t::{id,
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mm_set_sam_pri(n_regs, regs);
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}
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void mm_select_sub(void *km, float pri_ratio, int min_diff, int best_n, int *n_, mm_reg1_t *r)
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void mm_select_sub(void *km, float pri_ratio, int min_diff, int best_n, int check_strand, int min_strand_sc, int *n_, mm_reg1_t *r)
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{
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if (pri_ratio > 0.0f && *n_ > 0) {
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int i, k, n = *n_, n_2nd = 0;
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@@ -264,6 +264,9 @@ void mm_select_sub(void *km, float pri_ratio, int min_diff, int best_n, int *n_,
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if (!(r[i].qs == r[p].qs && r[i].qe == r[p].qe && r[i].rid == r[p].rid && r[i].rs == r[p].rs && r[i].re == r[p].re)) // not identical hits
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r[k++] = r[i], ++n_2nd;
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else if (r[i].p) free(r[i].p);
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} else if (check_strand && n_2nd < best_n && r[i].score > min_strand_sc && r[i].rev != r[p].rev) {
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r[i].strand_retained = 1;
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r[k++] = r[i], ++n_2nd;
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} else if (r[i].p) free(r[i].p);
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}
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if (k != n) mm_sync_regs(km, k, r); // removing hits requires sync()
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@@ -271,6 +274,19 @@ void mm_select_sub(void *km, float pri_ratio, int min_diff, int best_n, int *n_,
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}
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}
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int mm_filter_strand_retained(int n_regs, mm_reg1_t *r)
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{
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int i, k;
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for (i = k = 0; i < n_regs; ++i) {
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int p = r[i].parent;
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if (!r[i].strand_retained || r[i].div < r[p].div * 5.0f) {
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if (k < i) r[k++] = r[i];
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else ++k;
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}
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}
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return k;
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}
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void mm_filter_regs(const mm_mapopt_t *opt, int qlen, int *n_regs, mm_reg1_t *regs)
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{ // NB: after this call, mm_reg1_t::parent can be -1 if its parent filtered out
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int i, k;
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